Grease-cup.



A. 11. PRIBIL.

` GREASE CUP. APPLIOATION FILED SEPT. '10, 1912.

l,l0'?,350. Patnted Aug.18, 1914,

j 11 vente@ 'narran ALEXIS E. PRIBIL,

FFE.

oF DETROIT, MICHIGAN, -AssIerNon, EY 4MEsnE ASSIGNMENTS, To

GEORGE W. BOWEN, or AUBURN, NEW YORK.

GREASE-CUP.

riot-,asd

Speccaton of Letters Patent.

Patented ang. is, asia.

Application filed September 10, 1912. Serial No. 719,521.

To all whomY 'fit may concern:

Be it` known that I, LEXIs R. PRIBIL, a citizen of the United States of America, re siding at Detroit, in the county of lYayne and State of Michigan, have invented certain new and useful Improvements in Grease-Cups, of which the following is a specification, reference being had therein to. the accompanying drawings. v

In the use of compression grease cups it is desirable that they be so constructed that their movable parts are securely locked when the cups are filled and mounted in position. Also when grease cups are manufactured or applied in large quantities, it is desirable that they be so designed as to containa minimum amount of material and possess a maximum capacity.

lhis invention relates to compression grease cups and to a construction thereof whereby the movable parts are securely held in position,'and whereby the cost of production both for labor and material is reduced and the greatest capacity for the material used is obtained.

The invention consists in the matters hereinafter set forth and pointed out in the appended claims.

Inthe drawings. Figure 1 is a view, partially in" longitudinal section and-partially in elevation, ol a compression grease cup eml bodying features of the invention: Fig. 2 is a top plan view of the cup; Fig. 3 is a View in detail and in section on line lll-IH of Fig. 1; and Fig. 4 is a view in section looking upwardly taken cn or about line 1V- IV of Fig. 1, the rim flange or annular part of the base being omitted.

.\s herein shown a base 1 of suitable material has a loilgitudinally apertured nipple 2 that is exterior-ly screwthreaded or otherwise provided with means for attaching .to a bearing or machine to be lubricated. An interiorly screwthreaded rim flange or annular part 3 is formed on or secured tothe base, and preferably projectsv from the top thereof. A locking member 4 is supported 'on the base, being preferably arranged within the flange or annular part 3. As illustrated, this locking member is a flat spring having its central portion mount# edron a seat, as a boss 5, provided on the top or upper en'd surface of the base 1 within, and substantially concentric with, and spaced apart from, the flange or annular part 3 the spring being preferably fixed in position on itsseat by a turned-over retaining flange 6 on the central portion of the uppervface of the seat or boss 5. This spring or locking member 4 is provided With arms extending toward the flange or annular part 3 and spaced apart from the opposing surface of the top of the base interposed between the seat -5 Aand the annular part 3, which surface is shown as depressed below the seat 5; and said arms of the lock-- ing member are provided with radial ribs or projections Yj' struck up or formed on their outer portions which lieadjacent to the rim flange 3. Although the locking member or spring 4 is here illustrated as provided with a plurality of yielding portions or arms, it is obvious that one or more of these arms may be dispensed with.

.in inverted cup-shaped grease retaining cap S with upper portion 9 that may be knurled, or otherwise fitted for convenient manipulation, is screw-threaded at its open lower end into the flange S, and the marginal lower edge of said open end bears downwardly against, and coacts with, the locking member 4. Preferably, marginalv notches, indicatedat 10, are provided in the lower edge of the cap and are adapted to yieldingly interlock with the projections 7 olI the locking member compression piston or disk 1l with suitable packing washer 12 lits within the cap in screwthreaded engagement with the lower end of a spindle 13. This piston is-non-revoluble within the cap 8 and is movable axially in said ca p as the spindle 13 is revolved. Said spindle projects within the cap 8 and above its closed ond 14 and is ,rotatable in a guide opening in the closed end 14 by means of a suitable handle 1.3 on the upper end, of' the spindle above the closed end of the cap 8, said spindle and handle constituting the operating member for the piston ll. Prefer-- ably. the handle is screw-threaded onto the spindle and locked in position by a pin 16 or the like, and abut a ferrule 17 of spring material that encircles the spindle and'has a flared 'base flange 18 which rides on a roughened, knurled or notched face indithat said parts are not displaced by the jarring of the support for the grease cup. Furthermore, the plunger cannot Work down to eject grease when it is not desired. Becauseof 4the simplicity of construction and lightness the cost of the cup is low while it is elficient and its parts are not readily- Obviously, changes in the details of construction may be made without departing from the spirit' of my invention and I do not limit myself to any particular .form or arrangement of parts.

lll/That I claim iszl. In a grease cup, the combination of a base h'aving an annular part, an inverted cup-shaped cap having its open end turning within the annular part, and a locking member arranged within the annular part i and fixed to the base and having a portion thereof spaced apart from, and yielding4 relatively to, the opposing surface of the base, and detachably engaging the Wall of the open end of the cap for holding the cap from turning relatively to said annular part, substantially as and for the* purpose set forth.

2. ln a grease cup, the combination of a base having an annular internally threaded part,` an inverted cup-shaped cap having its open end externally threaded and screwing within the annular part, and a locking.

member arranged within the annular part and'fixed to the base and having a portion thereof spaced apart from, and yielding relatively to, the opposing surface of the base, and detacliably engaging the wall of the open end of the cap for holding thc cap from turning relatively to said annular part, substantially as and for the purpose specilied.` v

3. In a greasev cup, the combination of a base having an annular part and a seat ar-l ranged Within the annular part and spaced, apart therefrom, an inverted cup-shaj'ied/ cap having its open end turning within the annular part, and a locking member` mounted on the seat and having a portion thereof projecting beyond `the seat toward the annular part and spaced apart from. and yielding relatively to, the opposing sur face of rthe base, theentremit'y of said yyield-- ing portion detachably engaging the `v7fall of the open end of the cap for holding thel cap from turning relatively to said annular as and for the purpose part substantially concentric therewith and spaced apart therefrom, an inverted -cupshaped cap having its open `end externally threaded and screwing within the/.annular part, and a locking member mounted on the seat and having an arni projecting beyond the seat toward the annular part and f spaced apart from, and yielding relatively to, the opposing surface of the base, the ex# tremity of the arm being provided with means detacl'iably engaging the wall of ,the

from turning relatively to said annular 'part'. substantially as and scribed. i i

In a grease cup, the con'ibination ,of a base having an annular part and Ya seat arranged Within the annular part 'and spaced for the purpose de- `open end of the cap for holding the cap the cap from turning relatively t0 said annular part, substantially as and for the purpose specified.

6. In' a grease cup, tlieicombination of a base having an annular part, a seat ar ranged `within the annular part, and a sur face interposed bet'iveenV the annular part and the seat'and'depressed beneath said seat, an inverted cnp-shaped cap having its onen end turning Within the annular part, and a locking member mounted 4on' the seat and having a portion thereof projecting beyond the seat above said depressed surface and toward the annular' part` said portion of the locking member being spaced apart from, and yielding relatively to, said depressed surface and dctiu'rhably engaging the Wall of the open end of the cap for hold.

ing the cap from turning relatively to said annular part, substantially as andV for the purpose set forth. e

T, ln a grease cup, the combination of a base having an attaching nipple and a rim flange, a boss on the upper face of the base,

a spring plate secured to the boss With arms extending toward the flange above the base and'a. cap detachably engaging the/ ange and interlocking with the arms when forced home.

spring plate rigidly secured near its centerl on the boss,',spring arms extending from the plate, projections on the arm extremities, and a cap detachably engaging the rimA flange and having a notched-margin that engages with the projections when the cap 'forced home. v y A f). In a grease cup, the combination of a base having an annular part, an inverted cup-shaped cap having its open end turning within the annular part,` a locking member arranged within the annular part and fixed to the base and having a. portion thereof spaced apart from7 and yielding relatively to. the opposing surface of the base, and detach-ably engaging thewall of the 'open .end of the cap tor holding the cap from turning relatively lto said annular part, and means within the cap for ejecting the grease, substantially as and for the purpose set forth.

10. In a grease cup, the combination of a base having an annular internally threaded part and a seat arranged within the annular part, an inverted cup-shaped cap having its open end externally threaded and screw- `ing within the annular part. a locking member having its central portion mounted 'on lthe seat and having arms projecting in different directions beyond tle seat toward the annular part and spaced apart from, and yielding relatively to, the opposing sur faces ol the base. the arms detaehably en gaging the wall of the open end of the cap for holding the cap from turning relatively to said annular part. and means carried by the closed end oi' the cap and movable within the cap relatively theretoforejecting the grease. substantially asand for the purpose speciied.

l1. In a grease cup, a base, an attaching nipple depending -irom the base7 a rim flange on the base, a boss on the upper face of the base within the flange, a spring-plate rigidly supported on the boss with arms eX- tending toward the'rim flange above the base, a cap in screwthreaded engagement with the rim flange provided with notches on its lower margin with which the spring arms engage when the cap is forced home,- and means for ejecting the contents of the cap through the base.

l2. In a grease cup. the combination of a base, an inverted cup-shaped cap detachably mounted on the base, a piston within the cap and non-revoluble relatively thereto, an operating member journaled in the closed end of the cap, one end ot the operating member being within the cap and eoacting With the piston for movingthe same axially in the cap, and the other end of the operating member projecting above the closed end ot the cap, and yielding means on the outside of the cap coacting with the cap and said other end of the operating member for holding the operating member from revolving relatively to the cap, substantially as and for the purpose set forth.

13. In a grease. cup, the combination of a base, an inverted cup-shaped cap detachably mounted on the base7 a piston Within the .ap and non'revoluble relatively thereto, an operating member 'journaled in the closed end ot the cap, one end of the operating member being within the capl and coacting with the piston for moving the same axially in the cap. and the other end of the operating member projecting above the closed end of the cap, said operating member being'- provided with a shoulder7 and yielding means mounted on the operating member and eoacting with the shoulderand the opposing surface of the cap for holding theoperating member from revolvingvrelatively to the cap. substantially as and for the purpose described.

1l. ln a grease cup, the combination of a base, an inverted cupshaped cap detachably mounted on the base and having an outer surface of its closed end roughened, a piston within the cap and non-i.'e\'oluble relatively thereto, an operating member journaled in the closed endot the cap, one end ol the operating member being within the cap and eoaeting with the piston' for moving the same axially inthe cap, and the other end oi the operating member projecting above the closed end of the cap, lthe operating member being provided with a shoulder above the closed end of the cap, and yielding means mounted on the operatingl membe' and coaeting with said roughened surface on the cap and the shoulder on the operating men'iber for holding the operating member from revolving relatively to thecap, substantially as and for the pury pose specified.

15. In a. grease cup, the combination of a base having an annular pant, an inverted cup-shaped cap having-its open end turning within the annular part, means for holding the cap from turning relatively toY said annular part, apistonV non-revoluble within the cap, an operating member revoluble in the closed end of the cap and having one end eoacting with the piston tor moving the same axially in thev cap, and yielding means on the outside of' the cap coacting with the cap and said other end of the operating member for holding the operating member from revolving relatively to the cap, substantially as and for the purpose set forth.

16. In a grease cup, a base, an attaching nipple depending from the base, a rim ange on the base, a cap in screw/threaded engagement with the rim flange, means for holding the cap from turning relatively to the rim flange, a spindlerotatable in the top of the cap, a handle on the upper part of the spindle, la vspring ferrule in compression between the handle and the cap, and a corn pression plunger in the cap in screwthreaded engagement With the spindle.

17. In a grease cup, a base, a longitudinally apertured attaching nipple depending 'from the base, a lange on the rim of the base, a' cap in screwthreaded engagement with the rim flange, means for holding the cap from turning relatively to the rim flange, a roughened annular face on the upper end of the cap, a spindle rotatable' through the head of the cap concentric with Copies of this patent may be obtained for the capand having a flared spring rim adapted to yieldingly engage the annular face on the cap head.

In testimony whereof I affix my signature in presence of tWo Witnesses.

ALEXIS R. IRIBIL.

Witnesses z C. R. STIGKNEY, A. M. SHANNON.

ve cents each, 'by addressing the Commissioner of Patenti.

Washington, D. C. 

